- warriorinc sala prove -registrazioni
- Wartsila Italia
- WARTSILA ITALIA SPA
- Washpanel s.r.l.
- WASP
- Wästberg
- WASTE IS MORE
- WASTE ITALIA
- Waste Treatment Technologies B.V.
- Water & Pool Assistance di Simionato Renzo Vanis
- WATER- ART DI GUERNACCINI CHRISTIAN E C. SAS
- Water Expo
- WATER GAMES DI BALLABIO SERGIO
- WATER GAMES DI BALLABIO SERGIO
- WATER LINE SNC
- Water Line SRL
- Water Report & co
- WATER REPORT e CONSULTING
- Water Tank Manufacture
- water technology
- Water Technology Solution SA
- Water Treatment System
- WATER TREATMENT SRL
- Water Way Engineering Gmbh
- WATERANDCOMPLEMENTS SRL
- Waterevolution
- Waterford City Council Architects